Strap for Portuguese Automatic Red Gold / Tourneau

The lug width of the IWC Portugieser IW5001-18 is 22mm. This specification is determined by the case diameter of 42.30mm and the geometry of the lugs. To verify the measurement, measure the distance between the two lugs with a digital calliper. A precise lug width ensures correct compatibility without undesired aesthetic effects.

For a Portugieser in rose gold, we recommend a Mississippi alligator in Havana tone: the fine grain of the reptile enhances the metal without competing with it, and the warm colour creates a natural visual dialogue. Alternative options of excellence are calf leather in vegetable tanning (for accelerated patina) and shell cordovan (for those seeking the glossy glass effect over time).

Strap replacement is performed using spring bars. With a dedicated tool (spring bar tool), gently compress the internal spring of the bar, remove it from the lug, then repeat the operation on the opposite lug. Once the spring bars are removed from the old strap, install them on the new one. If you are inexperienced, we recommend consulting an expert to avoid damage to the case.

Yes, any strap with a 22mm lug width is compatible with the IW5001-18. High-quality aftermarket straps (genuine alligator, shell cordovan, vegetable-tanned calf) often surpass original straps in craftsmanship. Always verify that the lug width is exactly 22mm and that the strap is not too thick for your case lugs.

The lifespan of a leather strap depends on the tanning method and usage. A high-quality alligator or calf strap, with vegetable tanning or traditional chrome tanning, typically lasts 3-5 years if worn daily and maintained properly (avoid excessive humidity and seawater). Shell cordovan can last longer (5-8 years) due to fibre density. Regular maintenance and rotation with other straps significantly extends useful life.